Pedestal-tie



A. C. NEGUS.

PEDESTAL TIE.

APPLICATION FILED MAY 18, 1921.

Patented Aug. 23, 1921.

WITN E55 E5 UNITED STATES PATENT OFFICE.

PEDESTAL-TIE.

Specification of Letters Patent.

Patented Aug. 23, 1921.

Application filed May 18, 1921. Serial No. 470,650.

To all whom it may concern:

Be it known that I, ALFRED C. NEGUS, of Schenectady, in the county of Schenectady and State of New York, a citizen of the United States, have invented a certain new and useful Improvement in Pedestal-Ties, of which improvement the following is a specification.

My invention relates to ties or binders used for connecting the lower ends of the pedestal jaws of locomotive engine frames, and its object is to provide a device of this class which shall be of ample strength, simple construction, ready applicability, freedom from necessity of being fitted to tapered surfaces in pedestal jaws, and capability of having wear readily and fully taken up whenever required.

The improvement claimed is hereinafter fully set forth.

As originally constructed, and as most generally applied in present locomotive practice, pedestal ties are in the form of a.

bar which is recessed to fit tapered lugs or projections on the lower ends of the pedestal jaws, with the allowance of a reasonable degree of draw or opening between the upper surface of the pedestal tie and the under side of the frame, the tie being secured and held in position'by vertical bolts. This form of tie was found to be objectionable, for the reason that when it was loose in service, it could be repaired only by being upset in a blacksmith shop and refitted, and that a considerable percentage of frame failures were resultant upon the working of the pedestal ties.

The objections above stated, are obviated by my invention, under which any degree of wear, may be taken up without difficulty, and without involving any change in, or refitting of, the tie, and the design is readily applicable to any frames equipped with the present bolted type of pedestal ties.

In the accompanying drawing: Figure l is a side view, in elevation, of a portion of a locomotive engine frame, illustrating an application of my invention; Fig. 2, an inverted plan view; Fig. 3, a side view, partly in section, of the pedestal tie, detached from the frame; Fig. i, a partial horizontal section, on an enlarged scale, on the line a a of Fig. 1; Fig. 5, a side view of an adjusting wedge; Fig. 6, a similar view, taken at a right angle to Fig. 5; Fig. 7 an end view; Fig. 8, a side view of a wedge block; Fig. 9,

a similar view, taken at a right angle to Fig. 8; and, Fig. 10, an end view.

In the practice of my invention, referring descriptively to the specific embodiment thereof which is herein exemplified, I provide a pedestal tie, 1, which is ordinarily in the form of a bar of rectangular section, both longitudinally and transversely, in the top of which, adjacent to its ends, there are formed transverse recesses, 1, rectangular 1n cross section, which receive the lower ends of the pedestal jaws, 2, of the frame member, 2, and the wedges and wedge blocks hereinafter described. The pedestal tie is secured to the frame member by vertical bolts, 3, engaged by nuts, 3*, which bolts are a light tapered driving fit in the frame, and pass through longitudinally elongated holes in the pedestal tie. When the nuts are drawn tightly against the pedestal tie, it is solidly clamped, vertically, to the under side of the frame. I

The clamping action of the pedestal tie on the lower ends of the pedestal jaws, 2 is effected and maintained by wedges, 4:, each having a straight side face, 4*, which fit against the'outer straight face side of one of the recesses, 1, of the pedestal tie, and an opposite inclined face, 4', which fits against a correspondingly inclined side face, 5", on a wedge block or gib, 5, having an opposite straight face, 5, which fits against the outer straight face of the end of one of the pedestal jaws. The inner side of said end fits against the inner straight face of the recess of the pedestal jaw. Lips, 5, formed on the ends of the wedge blocks, engage the sides of the pedestal jaws, and prevent tendency to displacement when the wedges are drawn into place, which is done by nuts, 4, engaging threaded stems, 4 integral with, and projecting longitudinally from, the wedge blocks, and passing through elongated holes in lateral seat extensions, 5, on the wedge blocks. The nuts, 41, exert the necessary draft upon the wedges to clamp the wedges and wedge blocks, and the adjoining faces of the ends of the pedestal jaws, rigidly in the transverse recesses, 1 of the pedestal ties, and, when the vertical bolts adjoining the ends of the pedestal ties and passing through the ties and frame, are drawn rigidly to the frame, a rigid connection of the pedestal ties and frame is effected. After the wedges have been drawn so far that their available taper is exhausted, liners of thin metal may be inserted behind the wedge blocks, and the ties will perform their function, without the necessity of renewal or refitting, either of the pedestal ties or of the accessory wedges or wedge blocks.

It will be obvious to those familiar with shop operations and locomotive maintenance, that my invention is applicable in connection with locomotive frames of any of the standard constructions now in service; that the clamping action upon the pedestal jaws which is provided for, can be effectively exerted under all conditions of wear, for which the largest surface admissible under the conditions of width of frame is provided; and that adjustments can be fully, easily, and expeditiously effected, whenever required, by merely tightening the nuts of the wedge blocks stems. The fact that when proper adjustments are made, the pedestal tie becomes a rigid member of the frame, and the exemption from necessity of renewal or refitting of the tie, or machining and fitting to a tapered surface on either the frame pedestal jaw or on the pedestal tie, are also substantial advantages.

I claim as my invention and desire to se cure by Letters Patent:

1. The combination, with a locomotive frame pedestal, of a pedestal tie, having transverse recesses in its upper face adapted to receive the ends of the pedestal jaws; bolts, securing said pedestal tie to the frame; and adjustable clamping devices, fitting between the pedestal jaws and the outer sides of the recesses of the pedestal tie.

2. The combination, with a locomotive frame pedestal, of a pedestal tie, having vertically sided transverse recesses in its upper face, engaging the ends of the pedestal jaws; bolts, securing said pedestal tie to the frame; and vertically sided adjustable clamping devices, interposed between the pedestal jaws and the outer sides of the recesses of the pedestal tie.

3. The combination, with a locomotive frame pedestal, of a pedestal tie, having transverse recesses in its upper face, engaging the ends of the pedestal jaws; bolts, securing said pedestal tie to the frame; wedges, having straight and inclined sides, the former bearing against the outer sides of the recesses of the pedestal tie; and wedge blocks, interposed between the wedges and the pedestal jaws.

l. The combination, with a locomotive frame pedestal, of a pedestal tie, having transverse recesses in its upper face, engaging the ends of the pedestal jaws; bolts, securing said pedestal tie to the frame; wedges, having straight and inclined sides, the former bearing against the outer sides of the recesses of the pedestal tie and wedge blocks, interposed between the wedges and the pedestal jaws; and means for exerting draft on the wedges. v

5. The combination, with a locomotive frame pedestal, of a pedestal tie, having transverse recesses in its upper face, engaging the ends of the pedestal jaws; bolts, securing said pedestal tie to the frame; wedges, having straight sides bearing against the outer sides of the recesses of the pedestal tie and opposite inclined sides;

threaded stems on said Wedges; wedge blocks, interposed between the wedges and the pedestal jaws; and nuts, engaging the stems of the wedges and bearing on the wedge blocks.

ALFRED C. NEGUS.

lVitnesses J. HOWARD WAGAR, MYRTLE N. RATH UN. 

